Hi jumbojo and welcome to the eForum
I'm sorry to hear that you are having problems with this. I can completely appreciate how frustrating this must be for you.
Do you get any error messages at all? What happens when you try and view a webpage? What web browser are you using at the moment? Do you have any other web browsers that you are able to test this with? (Google Chrome, Firefox etc)
Can you also give me your full postcode of the area that you are using the dongle in. I can then check the local sites to ensure there are no issues.
Please let me know and we'll be more than happy to help you further
Regards
Trev
eForum Team